Plugging and reinforcing method for prefabricated shear wall cantilever I-steel reserved hole

• Main Authors: WANG CHUANGGUO, YANG HONGYU, CHEN WANDONG
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2022
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; BUILDING MATERIALS; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; FORMS; GENERAL BUILDING CONSTRUCTIONS; HANDLING BUILDING MATERIALS ON THE SITE; INSULATION OR OTHER PROTECTION OF BUILDINGS; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; ROOFS; SCAFFOLDING; SHUTTERING; STRUCTURAL ELEMENTS; WALLS, e.g. PARTITIONS

The invention provides a plugging and reinforcing method for a prefabricated shear wall cantilever I-steel reserved hole, and relates to the technical field of reserved hole plugging. The method comprises the steps that sleeves are installed in an upper shear wall and a lower shear wall at the position of an I-shaped steel reserved hole respectively, and grouting holes are formed in the upper shear wall. And after the cantilever I-shaped steel is detached, the threaded rod is in threaded connection in the sleeve. And a heat preservation plate is used for blocking an outer side end opening of the I-shaped steel reserved hole, an inner side formwork is used for blocking an inner side end opening of the I-shaped steel reserved hole, an expansion bolt is arranged in the I-shaped steel reserved hole, and the two ends of the expansion bolt are fixedly connected with the heat preservation plate and the inner side formwork correspondingly. Grouting materials are injected into the I-shaped steel reserved hole through